We are one of the biggest optical measuring devices distributors in China.LOOKWORLD is a special manufacturing and design company, which focuses on R&D and selling active components ,fiber optic test instruments, optoelectronic devices and module, passive components, coupler working station (FBT System), its aim to link international and Chinese domestic fiber-optic market, promoting the whole fiber optic field smoothly. To better serve manufactures of passive components and test instruments, network construction and maintenance personal, system integrator, Rayscience can provide wide-range fiber-optic products.